Georgia Tech Pumps Water Through Silicon for Chip Cooling
One of the things that stops electronic devices from going faster is heat. That’s why enthusiasts go as far as using liquid nitrogen to cool CPU chips to maximize their overclocking potential. Researchers at Georgia Tech have been working on cutting fluid channels directly into the back of commercial silicon die (an Altera FPGA, to be exact). The tiny channels measure about 100 micron and are resealed with another layer of silicon. Water is pumped into the channels to cool the device efficiently.
A comparable air-cooled device would operate at about 60 degrees Celsius. With the water cooling channels cut …read more
Deuterium Powered Homes and the Return of Cold Fusion Hype
We’ve been sent this press release claiming a new kind of fusion reaction that works at small scales using an incredibly exotic fuel material: ultra-dense deuterium. We looked into it with an open mind, and if we’re being kind we’ll conclude that there’s a ten-year long research project being undertaken by [Leif Holmlid], a single scientist whose claims would win him one or two Nobel prizes if any of it were true.
If we drop the kindness and approach it rationally, this doesn’t smell right and can’t be believed until it has been reliably reproduced by someone not associated with …read more
Sensor Net Makes Life Easier for Rice Farmers
Rice is cultivated all over the world in fields known as rice paddies and it is one of the most maintenance intensive crops to grow. The rice paddy itself requires a large part of that maintenance. It is flooded with water that must be kept at a constant level, just below the height that would keep rice seedlings from growing but high enough to drown any weeds that would compete with the rice stalks for nutrients. This technique is called continuous flooding and a big part of the job of a rice farmer is to inspect the rice paddy every …read more
Radial Solenoid Engine is Undeniably Cool
Radial engines are just plain cool – it’s inarguable that any tech that originated with early aviation is inherently awesome. But, what do you do when you want to build a radial engine in your dorm where a combustion engine would be inadvisable? For University of Washington students [Jeffrey Weng] and [Connor Lee] the answer was to power it with solenoids in place of the pistons.
The easiest way to approach a project like this would have been to use a microcontroller. A simple program running on an Arduino could have easily provided the timing to switch power to each …read more
Hackaday SuperConference Call for Proposal
We’ve been keeping pretty quiet about the Hackaday SuperConference, but rest assured a full-blown announcement is on the way soon. For now we need your help getting the word out to presenters. Do you have a favorite hardware designer, hacker, or project? Get to work convincing them to Submit a Talk or Workshop proposal for the Hackaday SuperConference. Of course if you yourself fall into one of these categories, consider this your invitation to submit! Proposals are due October 10th.
The Hackaday SuperConference is the hardware con you’ve been waiting for. The two-day event will be held in San …read more